Flexible pipe-joint.



J. H. WOOD.

7 FL EXIBL E PIPE JOINT. APPLICATION FILED MAY 5.1913.

Puienred Apr. 18,1916.

U TED-"Sums PATENT OFFICE;

JAMns HURON woon, on HADLDONFIELD, NEW JERSEY, Assrenon 'ro CAMDEN mole WORKS, E.CAMDEN, 'NEW JERSEY, A CORPORATION on NEW JERSEY.

ELExIBLEPIPE-Jom'r; 4

To all whom; it may concern 0 Be it, known thatI, James II. 'Woon, a citizenr of the United States; residing in Haddon-field, countyof Camden,- State of New Jersey, ha e inventedtcertain Improve ments inflexible Pipesiloints, of which the followihgis a specification; I i

Thegobject of my invention is to make a i. watertight: joint between two pipes which are flexibly connected ThlSMObjGCb I attain in I the followingfmanner,-: reference being hadto the accompanying drawings, 111

which; j i a Figure, 1 is alongitudinal sectional view, of two pipes coupled together and illustrating my invention; Fig. 2 is a sectional view on the line a a,*Fig.1';IFig. 3 is a view illustrating a modification of the invention;

Fig. 4 is aview of the plug; andFig. 5 is V other pipe 1s smooth so aso-turn in the a view of a modification of the inventionl' Referring to thefldrawings, l-is one pipe having a bell end 2 and a flange 3, in the presentinstance.

4: is another pipe having a spigot or ball end 5fitting-in the bell end 2 of the first mentioned pipe. In the ball end 5 is a series of annular grooves 6 of any shape or number desired'andi is" asoft metal ring having ribsektending into the grooves. This ring is usuallyflinade of lead, or other suitable material, which would form awater tight joint *betweenthe two pipes.

This construction is now commonly used in making flexible joint vpipes and the only means provided at the present time to prevent. leakage is that of calking the lead joint from the outside. This, however, is not efiective in many instances, especially where the water passing through the pipe is under high pressure I j i I find that by forcing additional metal into the space between, the bell end of one pipe andthe'ball end of the other pipe, I can make a substantially tight joint. This is accomplished in the following manner: 8 8 are a series of radial holes in the bell end of the pipe, in the present instance, which are threaded and mounted in the threaded openings are screw tl-lreaded plungers9 having heads adapted to receive -a suitable tool sothat they can be t rned.

1 Plugs IQ of lead, or other suitable material,

Fig. 4, are placed in the-holes 8 and on 1913. seriainol'zeac is caused to How and incorporate with-the crevices between the ball andfthe bellrimi-l rc t of Letters Patent. P a-tented Apr. 18,1916; i Application filed May 5,

Preventing the escape of water through thc joint. 'If one pipe isturned in-respect to thepther after the lead plugs have been forced into the ring, the portion of the plug 1 vremaining in the opening 8 is cut ofl from the ring on the: movement of. the pipes.

one inserted in each hole is notjs lficient to; i

make a tight joint, then the SCITBWMCHII'QbQ rn removed and another lead plug 10 inserted ;in iith, hole and the screw reinsertecl and, driven in the opening until the joint istight.

In -Fig. '3. I have illustrated ianother form of my coupling in which the ring '7 has tongues adapted-to grooves 11 in the bell end-'2 of the pipe? The ball end 5* ofthe metal of the plugs into the ring, but as the ring is attached to the bell the extensions'of the plug are not cut from the ring when one pipe turns in the other.

In Fig. 3, I have shown the ball and bell of short sections which form a knuckle joint and these sections are'finished to bebolted on to standard sizes of flanged pipe, but it will beunderstood that the ball and bell may be formed integral with the pipes, or

may be made separate and attached thereto by any suitable fastenings.

c In Fig. 5, I have illustrated a modification" in which there are two annular series of openings so that where the surface is ex, tended a series of different points.

I claim:

1. The combination of two-"pipes; one" I 100 having a bell end and the other having a ball end adapted to the bell; a broadisot'tmetal packing ringmounted between the plugs can be inserted at two parts and secured to one ofsaid parts; a

a series of radial holes in the bell end, and "z I 1 and soft metal plugs mounted in the holes spaced apart; screwsmounted in the holes;

55 H metal of the annular ring 7.. 'fillingpanv between the ring and the screws so that on turning the screws, the soft metal plugs will be caused to flow into the ring.

- 2. The combination in a flexible joint for pipes, of two pipes, one pipe having a bell end and the other havinga' ba lend anounted in the bell end, the ball end havihg :a series of annular grooves in the peripihery" -mounted in the holes which, when turned,

will cause the metal of the plugs to be forced into the soft metal ring to make a water tight joint.

3. The combination in a flexible joint for pipes, of one pipe having a bell and another pipe having a ball adapted to the bell; a soft metal packing ring located between the ball and bell and secured to one of said parts so as to turn therewith; the other part having openings communicating with the space between the ball and bell for the insertion of soft metal; and meansfor forcing the metal from the openings into the said space between theipipes, the metal of the ring being sheared from the metal of the openings when one pipe is turned in respect to the other.

4. The combination in a flexible joint for pipes, of one pipe having a bell end and the other having a ball end adapted to the b ll, said ball end having grooves therein; a' 'bi oad soft metal ring having tongues extendihg into the grooves so that the ring will turn with the ball; the bell end having a series of radial communicating with the space occupied by the soft metal ring; holes; and plugs of the holes in front of being spaced at such when the screws are turned, a portion of the metal of the plugs will be incorporated soft metal located in the screws, the holes with the metal of the ring and the entire .ring will tightly fit between the ball and the bell and, "when one pipe is turned in respect to the other, the portions of the plugs remaining in the holes will be severed from the ring. 7 1 In testimony whereof, I name to this specification, two subscribing witnesses.

,, JAMES HURON WOOD.

Witnesses:

WM, E. SHUPE, VVM. A. BARR.

have signed my in the presenceof threaded holes therein screws adapted to the a distance apart that, 

